47477127487 has 2 divisors, whose sum is σ = 47477127488. Its totient is φ = 47477127486.

The previous prime is 47477127443. The next prime is 47477127539. The reversal of 47477127487 is 78472177474.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47477127487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47477127437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23738563743 + 23738563744.

It is an arithmetic number, because the mean of its divisors is an integer number (23738563744).

Almost surely, 2^47477127487 is an apocalyptic number.

47477127487 is a deficient number, since it is larger than the sum of its proper divisors (1).

47477127487 is an equidigital number, since it uses as much as digits as its factorization.

47477127487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17210368, while the sum is 58.

The spelling of 47477127487 in words is "forty-seven billion, four hundred seventy-seven million, one hundred twenty-seven thousand, four hundred eighty-seven".